Regular expression to match PHP function names.
See also
http://php.net/manual/functions.user-defined.php
File
- core/lib/Drupal/Core/Extension/ExtensionDiscovery.php, line 57
Class
- ExtensionDiscovery
- Discovers available extensions in the filesystem.
Namespace
Drupal\Core\Extension
Code
const PHP_FUNCTION_PATTERN = '/^[a-zA-Z_\x7f-\xff][a-zA-Z0-9_\x7f-\xff]*$/';
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